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Heart|Lab Grown|IGI

1.51ct D FL Heart Lab Grown Diamond

EX • D/FL • IGI LG788630904

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG788630904

Diamond specifications and retailer prices

From €1,130 EUR
$1,262 USD
As of October 31, 2026
Save €2,652 EUR (70%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €3,782 EUR at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 1.51ct lab-grown heart diamond

This 1.51ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG788630904 or 788630904. Listed at 6 retailers as of October 31, 2026, with prices from €1,130 to €3,782, a €2,652 spread on the same certified stone. Taylor and Hart lists it at €3,782. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle42.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788630904
Dimensions7.38 × 7.85 × 4.68 mm
L/W Ratio1.06
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.38 mm7.85 mm1.51 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788630904
Side View
Table 57.0%Crown 32.4°Girdle: STK-VTKPavilion 42.4°Culet: NoneDepth 59.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €1,569 EUR|Low: €1,130 EUR|High: €3,782 EUR|Avg: €2,147 EUR|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Taylor and Hart
November 1, 2026
Retailer 5€1,130 EUR
Retailer 4€1,329 EUR
Retailer 3€1,549 EUR
Retailer 1€1,569 EUR
Retailer 2€3,694 EUR
Taylor and Hart€3,782 EUR

42 data points across 6 retailers

6 retailers€1,130 EUR to €3,782 EUR

A
Cheapest Retailer
-
€1,130 EUR
$1,262 USD
B+
Retailer 2
-
€1,329 EUR
$1,485 USD
View
B+
Retailer 3
-
€1,549 EUR
$1,730 USD
View
B+
Retailer 4
-
€1,569 EUR
£1,380 GBP
View
B
Retailer 5
-
€3,694 EUR
£3,250 GBP
View
Most Expensive
B
Taylor and Hart
EQMB2OL · Oct 31
€3,782 EUR
$4,225 USD
View
5 more retailers have this diamond
Prices start from €1,130 EURSave up to €2,652 EUR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.51ct Heart
€1,130 EUR